irvingpop and damacus Fix installation and testing on Ubuntu 18.04 bionic, EL7, Fedora and (#…
…571)

Opensuse
Also:
- attempt to fix many of the tests that run in travis-ci
- Fix seemingly all the systemd-based installations by not deleting the default my.cnf file
- rename the mysql_test cookbook to test
- fix many test failures on fedora, rhel7 and opensuse
- rebase and squash a dozen different commits into one

Signed-off-by: Irving Popovetsky <irving@chef.io>
Latest commit d53a05f Jul 30, 2018